Blocked nose and snoring: what to know

When the nose is congested, you may breathe more through your mouth during sleep. Air passing through relaxed tissues in the throat can create vibration and noise. Colds, allergic rhinitis, and sinusitis can temporarily worsen this pattern. Snoring can also occur without nasal blockage, and a blocked nose does not mean that someone has obstructive sleep apnoea. The direction of concern comes from features such as pauses in breathing, gasping, or marked daytime sleepiness.

Manage the congestion according to its likely cause: saline may loosen mucus, and avoiding smoke, dust, and other triggers may reduce irritation. If allergies are suspected, discuss allergy medication with a pharmacist or doctor. Side sleeping may reduce snoring for some people, while alcohol or sedating medicines near bedtime can make it worse. Keep a record of noisy nights, witnessed pauses, morning headaches, and daytime tiredness; this helps a clinician judge whether further assessment is needed.

Arrange a medical review when snoring is frequent, newly persistent, or disturbing your sleep or a partner’s sleep. Seek prompt advice if another person notices breathing pauses, choking, or gasping, or if you have substantial daytime sleepiness, morning headaches, or difficulty concentrating. Get urgent help for severe breathing difficulty while awake, blue lips, chest pain, or sudden confusion.

Could my congestion be allergic rhinitis, sinusitis, or a cold? Do my sleep symptoms suggest obstructive sleep apnoea? Should I record my sleep or have a breathing assessment?